| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| *******************************************************************************/ |
| package org.apache.ofbiz.base.conversion; |
| |
| /** Converter interface. Classes implement this interface to convert one |
| * Java object type to another. |
| * |
| * @param <S> The source object type |
| * @param <T> The target object type |
| */ |
| public interface Converter<S, T> { |
| /** Returns <code>true</code> if this object can convert |
| * <code>sourceClass</code> to <code>targetClass</code>. |
| * <p>Implementations can accomodate class hierarchy ranges |
| * by converting super classes or interfaces.</p> |
| * |
| * @param sourceClass The source <code>Class</code> |
| * @param targetClass The target <code>Class</code> |
| * @return <code>true</code> if this object can convert |
| * <code>sourceClass</code> to <code>targetClass</code>. |
| */ |
| public boolean canConvert(Class<?> sourceClass, Class<?> targetClass); |
| |
| /** Converts <code>obj</code> to <code>T</code>. |
| * |
| * @param obj The source <code>Object</code> to convert |
| * @return The converted <code>Object</code> |
| * @throws ConversionException |
| */ |
| public T convert(S obj) throws ConversionException; |
| |
| /** Converts <code>obj</code> to <code>T</code>. |
| * |
| * @param targetClass The <code>Class</code> to convert to |
| * @param obj The source <code>Object</code> to convert |
| * @return The converted <code>Object</code> |
| * @throws ConversionException |
| */ |
| public T convert(Class<? extends T> targetClass, S obj) throws ConversionException; |
| |
| /** Returns the source <code>Class</code> for this converter. |
| * |
| * @return The source <code>Class</code> for this converter |
| */ |
| public Class<?> getSourceClass(); |
| |
| /** Returns the target <code>Class</code> for this converter. |
| * |
| * @return The target <code>Class</code> for this converter |
| */ |
| public Class<?> getTargetClass(); |
| } |